Molding-machine.



W. LEWIS. MOLDING MACHINE. APPLIGATION FILED DEU.1.1906. Y

l v [Nm/Ton Y rob/ver PATENTED JUNE Z3, 1908.

4 SHEETS-SHEET' 1.

rJQQBL'LASQ, PATBNTED JUNE. '23; 1998.

,-w. LEWIS. MOLDING MACHINE. AlPLIUATION FILED DEG'. 1, 1906.

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- 'Mlm/ran 10. Eliton J. A

e ks' J2 to .an 'arm J3 secured to the shaft.D. Y The shaft Dis'returned to its original posi-.e` ltion with the cylinders F verticalby means lower ends to ins I2 -carried byarms Is rig-v idly secured Atoa shaft I4 journaled in brackets A5 extending from the 'main frameassist in preventing independent movement of the'A p istns F1 withoutsimultaneous movement. A

The shaft Dis-rotated to carry the cylin-4 imiti'ng their capacity forThe` pistonJ. is connected by of a helical compression spring Kadjustably connected at its up `er end to an arm K5. se cured totheshaft 'and at its lower end. to .an abutment K2. ad'ustably secured tothe frame member' A. racket arms Lsupport buffer springs L1 andLz,whichcushion the movements of thecylinders away from and backto thevertical osition resectively. It. be understood t at the bu a er.springs L? are under initial loads and act only. to absorb shock vatthe instant at zwhich the .cylinders return tothe verticalposition,after -whichthey act as stops against which the spring K2 `vholds thecylinders in the trulyfvertical position.

f Oindicat'es the pipe leading fromia sourceof air or liquid underpressure. Suitable valves, 51, 52, 53, and 54, control connection fromthe 'pe O to pipes 1, 2, 3 and 4, resfpectivel ipe 1l leadsto a.reservoir 6 om which lead pipes 7 eachterininating in line withthe aXisof the shaft 'D ina coupling member 8 pivotally connected to acouplingmember 9. The .coupling members 9 are connected by pilli 10 vto thecylinder s aces formed in the c'y l ders F. The pipe 2 eads through aiiexible: connection 11 to a. pipe 12 connected by a coupling- 13 to alpipe 14 supor'ted by the ltrunnion engaged y the crosshead F3. 'Frompipe 14, connection is made to suitable mechanism for vibrating or'jar-4ing the valve 53 and 'arring the table to niega.

. Fl'being droppe settle sand contained y'the flask P resting on theplatform or frame G3 about the pattern Q secured to the frame G3. Thelcondition of the. yapparatus at that time is shown During the jarringoperation the i'ameG3 rests u on the table-B, the pistons d) so that thetrunnions Giare slightly above their' bearings in the bearing supportsF5. Whenv the y sand has been ders F cuit of the-vertical .position by'a liuid pressure device comprising a cylinder J and.'

firmly. settled about 'the pattern and the valve 53' is closed, the moldboard R clamped lin `lace in any'suitable manner, as

`'bymeans o clamps R1 and R? which enga e" the rabbetededges.v G" of,thej frame 3.

The pins are thenslidinto position to engage; the otches-Go and'the-.valve A51 .is turned to. admit pressure -rom thepipe 0. through.the/ ipe 1reservoir 6," pipes 7, coupling"l mem ers-8 and 9, pipes A10.tothe move out of their cylinders and ift-l the frame G3, *and .parts'supported by it, above, the

table B. The spring K acting onl the .arm

Kl prevents any,v angular v.movement of-tlie.4

cylinders F. at this time.` When thev plat-" vform I,Gis raised abovethe table B,a,suiii'"-= cientfdistance, the pins H are withdrawn and.

'the frame 'G3 and parts carried by. it `aieturned over. .'Ordinarilythecenter of a.v'

that this A'turning' over movement occurs automaticall when the pins arewithdrawn.

The controlling valve 51 is then turned to,` connect the ipe 1 vto the4exhaust ort'55 and opped down upon t 'e' table *Bp The clam s R1 and R2are then -removed'and having been thrown into position I the flask isthe pins to engage the walls of the notches G5, .valves ity of themember Gan'd arts carried, yit,l is`then above the axis of. t etrunnionsG s o- 51 and 52 are operated to admit pressure to the vibratorthrough the valve and connec- A tions 2, 11,12, 13 and 14 and to againadmit `pressure through the pipe 1 to raise the pis. tons Fx and'drawthe attern romthe mold,

which with. the. ins

remains uponthe table B;

-As the pattern clears the mold and the pistons move to the'upward limitof their movement, valve 54 is `opened to admit pressure throughV thepipe 4, reservoir '15 and ipe `16 to the cylin ton Je and turn the shaftDin its bearings. This swings the cylinder F and pistonsand partscarriedv by them to pcsition shown in.

dotted lilies Ain lig. 3. This moves the frame' 'G3 kand the atternvaway from the flask to permit the atter to be 'removed in any suitable.manner. e Usually this removal :is brought about by means of an overheadtraveling crane, or the like. When the iiask is removed, the pipe 4 isconnected to the vexhaust 56 bythe operation of its valve and thecylinders are returned tothe vertical osition b -the action ofthe springK2. giinilarly t e pi e 1 'is connected to exhaust and the pistons 1 drodown i'n `their cylinders, the pins H1 having been withdrawnin the meantime, the frame swings back to the position shown in Fig. 1 and againrests on the table when the pistons F1 approachthe lower limit o' theirmovement.

The apparatus described has been found in practice to be simple andreliable in operation and to. greatly facilitate and expedite erJ toraise the pisiso theformation of molds. It will be obvious,

however, to' those skilledinthefart', ythat changes may be made in theforni ofm'y in- -fyention Without :departing frrnits spirit.

I claim asf'new and desire `tjosecure by Let ters Patent is rInf'particular it 'will be l'readilyunderstood that'someof theadvantages of my'invention pressure" means are employed for raising therame G3 and-rocking the'shaft D.' -Having now describedkmy invention,what 1'.- In amolding machine, a frame, a molding table, supportedthereon,- a horizontal shaft ]ournaled therein, cylinders connected.

to said shaft at o posite ends ofthe table,-

.pistons inl said cy inders, a pattern support engaged by said pistons,means for moving said pistons insaid cylinders to lift the support offthe table and means for rockin the shaft to swing said supporttransverse y of saidtable. f

2; In a molding machine,incombination, a frame, a molding tablesupported' thereby, a attern support, a cylinder pivoted to said frame,a'piston in said cylinder adapted to'.l

.engage said support andiift itofl' the table and means' for swingingsaid cylinder relative lto said frame to move the pattern supporttransversely of'the 4molding' table,

'3. In a molding machine, a frame, a mold* ing table and liftingdevicesinounted on said frame, a attern support ivotally connected tosaid iftmg devices, ockmg devices arranged .to Ilock said pattern frameagainst pivotal-movement relative t'o said` lifting devices in either oftwo positions ofsaid -support relative to said lifting devices. l

4. In a molding machine, a frame, a mold'- ing tabler and liftingdevices mounted on said frame, a pattern-support pivotally engaged bysaid'lifting` devices, flocking devices'for locking said attern supportagainst-pivotal movement re ative' to said lifting devices in' either oftwo ositions and means for moving` said lifting devices transversely ofsaid' 5. In combination a sup-porting frame, a molding table'carriedthereby, lifting devices one at eachside' of the table supported by saidframe, a pattern support adapted to be engaged by said devices, meansforcperating said ,devices to cause them. to engage the pattern supportand lift it" off the table and means for swinging said lifting devicesrelative to the supporting frame to move the pattern supporttransversely of the molding table.

6. In a molding machine, a molding table, a pattern support',liftingme'chanism, means forcausing it to enga e the pattern support andlift it vertically o the ymolding table separate means for acting onthe-lifting mechanism to cause it to move the patternv supporttransversely of said table.

'mechanism toy move said vmolding table, a

-port is .held above ,the table.

ed with trimnions, lifting mechanism provided with bear; sings, meansfor operating said lifting mech anism toy cause' said bearings to engagesaid trunnions and lift the framevertically oli the table, means formoving said lifting mechanism to move said support .transversely of saidtable, and means for locking said'pattern support against turningmovement relative `to said lifting mechanism in either of twopositions.l

Y9. In a molding machine, a horizontal molding table, a attern sup ortnormally resting on said tab e and provi ed with trunnions, liftingmechanism provided with bear# ings means for operating said liftingmechanism 'to cause sald bearings to engage said trunnions and-lift thefra-me 'vertically off the table, means l for moving said lifting*mechanism to move said support transversely of said table, means forocking 'said pattern support against turning movement relative tosaidlifting mechanism in either of '100 two positions, a yiask and meansforl detachi ably securing the flaskv to Vthe pattern 'sup port. 10.frame, a horizontal molding'table supported thereby, a` shaft journaled'in said frame, guides carried by said shaft one at each end of thetable, lifting devices mounted in-said away. from the shaft, means formoving' said lifting devices in their guides, la pattern supportnormally resting on said table, but ada )ted to be engaged'and liftedofi of said tabfe'by'said lifting devices and'means for rotating theshaft to move the pattern support transversely of said table.

11. Ina-moldingmachine, a supportingl frame,l a molding table supportedthereby, a shaft journaled in said frame, guidescarried by said shaft,lifting devices movablein said.

guides rtoward and awayfrom said shaft and provided with trunnionbearings, a pattern support' previded with trunnions lnormally Vrestingon said molding table, means 'for moving saidlifting devices in saidguides to for rotating-theshaft While the patternsup-Y 142. Ina moldingmachine,A a supporting In amoldingniachine,'a supporting Y guides andmovable, therein toward and 'i 4cause the bearings .to-engage saidLtrunnions "and lift the support off the table, and' means frame, ahorizontal moldingV table supported by and vertically movable withrespect to said frame, a horizontal Yshaft -journaled in said frame, apair of cylinders secured to said shaft, one at each side of said table;pistons located in said cylinders, 'a attern support normally resting onsaid ta le, means carried -by said pistons for engaging said supf` port,an arm secured-to said shaft, a piston inked tosaidrarm, a cylinder inwhich said piston is movable; Huid ress ure actuated means for jarringthe tab e relative to the frame, means for admitting .fluid pressureinto said c linders to cause the pistons to engage an lift the patternsupport, and means for admitting iiuid pressure to said cylinder torotate said shaft. v

13. In a molding machine, a supporting frame, a horizontal molding framesupported thereby, a shaft journaled in said frame, guides carried bysaid shaft one at each end of the table, lifting devices mounted in saidguides and movable therein toward and away from the shaft, a atternsupport normally resting on said ta le, means'for moving said liftingdevices in their guides, means for rotating the shaft to move the atternsupport transversely of said table an means for causing said liftingdevices to move in unison, said means 'comprising a second shaftjournaled in said frame, arms secured to said shaft and linkseXtendingfrom-said arms to said lifting devices.

l WlLF/RED LEWIS.

Witnesses:

ARNOLD KATz, JOHN E. HUBBELL.

